EP0402779A3 - Verfahren und Vorrichtung zur Ermittlung von Oberflächenstrukturen - Google Patents

Verfahren und Vorrichtung zur Ermittlung von Oberflächenstrukturen Download PDF

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Publication number
EP0402779A3
EP0402779A3 EP19900110848 EP90110848A EP0402779A3 EP 0402779 A3 EP0402779 A3 EP 0402779A3 EP 19900110848 EP19900110848 EP 19900110848 EP 90110848 A EP90110848 A EP 90110848A EP 0402779 A3 EP0402779 A3 EP 0402779A3
Authority
EP
European Patent Office
Prior art keywords
determination
waves
reflected
determined
proposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900110848
Other languages
English (en)
French (fr)
Other versions
EP0402779B1 (de
EP0402779A2 (de
Inventor
Wolfgang Prof. Dr. Grill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonident Anstalt
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE4016105A external-priority patent/DE4016105B4/de
Application filed by Individual filed Critical Individual
Publication of EP0402779A2 publication Critical patent/EP0402779A2/de
Publication of EP0402779A3 publication Critical patent/EP0402779A3/de
Application granted granted Critical
Publication of EP0402779B1 publication Critical patent/EP0402779B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
    • G01N29/345—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics continuous waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
    • G01S15/8913—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using separate transducers for transmission and reception
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/012—Phase angle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0425—Parallel to the surface, e.g. creep waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Theoretical Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

Gegenstand dieser Anmeldung ist ein Verfahren zur Ermittlung der Beschaffenheit der Oberfläche sowie der oberflächennahen Struktur von Objekten bis ca. in die Tiefe von einer Wellenlänge. Vorrichtungen zur Durchführung des Verfahrens sind ebenfalls vorgeschlagen.
Zur Durchführung dieses Verfahrens wird vorgeschlagen, das auf einer ebenen oder gewölbten Fläche aufliegende zu bestimmende Objekt durch einen Festkörper oder einen mit Flüssigkeit gefüllten Körper mit Ultraschallwellen zu beschallen und die durch die Beschallung an dem Objekt rückgestreuten und reflektierten Wellen von einem Empfänger aufzunehmen, wobei die Wellenlängen der Ultraschallwellen der Struktur des jeweiligen Objektes angepaßt sind. Durch die Intensität der rückgestreuten und reflektierten Wellen können Rückschlüsse auf die Beschaffenheit der Oberfläche und die Tiefenstruktur gezogen werden.
EP90110848A 1989-06-12 1990-06-08 Verfahren und Vorrichtung zur Ermittlung von Oberflächenstrukturen Expired - Lifetime EP0402779B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3919159 1989-06-12
DE3919159 1989-06-12
DE4016105 1990-05-18
DE4016105A DE4016105B4 (de) 1989-06-12 1990-05-18 Verfahren und Vorrichtung zur Erfassung von Oberflächenstrukturen

Publications (3)

Publication Number Publication Date
EP0402779A2 EP0402779A2 (de) 1990-12-19
EP0402779A3 true EP0402779A3 (de) 1992-10-28
EP0402779B1 EP0402779B1 (de) 2005-03-09

Family

ID=25881860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110848A Expired - Lifetime EP0402779B1 (de) 1989-06-12 1990-06-08 Verfahren und Vorrichtung zur Ermittlung von Oberflächenstrukturen

Country Status (3)

Country Link
EP (1) EP0402779B1 (de)
JP (1) JPH03103763A (de)
AT (1) ATE290339T1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222387C2 (de) * 1992-07-08 1994-06-30 Stockburger H Verfahren und Vorrichtung zur Identifikation der jeweiligen Raumstruktur eines Prüfobjektes
DE19634849A1 (de) 1996-08-28 1998-03-05 Siemens Ag Verfahren und Anordnung zur Identifikation von Personen
WO2002037402A1 (de) * 2000-11-03 2002-05-10 Stockburger, Andreas Verfahren und vorrichtung zur identifikation von prüfobjekten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048489A1 (de) * 1980-09-22 1982-03-31 Siemens Aktiengesellschaft Vorrichtung zum Untersuchen eines Fingerreliefs
WO1987005790A1 (fr) * 1986-03-27 1987-10-08 Pritzl, Werner Procede pour reconnaitre une empreinte digitale

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048489A1 (de) * 1980-09-22 1982-03-31 Siemens Aktiengesellschaft Vorrichtung zum Untersuchen eines Fingerreliefs
WO1987005790A1 (fr) * 1986-03-27 1987-10-08 Pritzl, Werner Procede pour reconnaitre une empreinte digitale

Also Published As

Publication number Publication date
ATE290339T1 (de) 2005-03-15
EP0402779B1 (de) 2005-03-09
JPH03103763A (ja) 1991-04-30
EP0402779A2 (de) 1990-12-19

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